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Fair Value (Details 2) (Fair value on a nonrecurring [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Impaired loans [Member]
Quantitative information about financial and nonfinancial assets
Fair Value at September 30, 2012	$ 6,900	$ 12,022
Valuation Techniques	Discounted appraisals
Unobservable Input	Appraisal adjustments
OREO [Member]
Quantitative information about financial and nonfinancial assets
Fair Value at September 30, 2012	$ 5,728	$ 5,914
Valuation Techniques	Discounted appraisals
Unobservable Input	Appraisal adjustments
Minimum [Member] | Impaired loans [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	5.00%
Minimum [Member] | OREO [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	0.00%
Maximum [Member] | Impaired loans [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	100.00%
Maximum [Member] | OREO [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	73.00%
Average [Member] | Impaired loans [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	38.00%
Average [Member] | OREO [Member]
Quantitative information about financial and nonfinancial assets
Weighted Average	32.00%

X

- Definition

Fair value disclosure unobservable input.

+ References

No definition available.

+ Details

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X

- Definition

Fair value weighted average rate.

+ References

No definition available.

+ Details

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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X

- Definition

Description of the inputs and valuation technique(s) used to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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